age = int(input())
if age < 2:
    print('You are a baby.')
elif age < 4:
    print('You are learning to walk.')
elif age < 13:
    print('You are a child.')
elif age < 20:
    print('You are a teenager.')
elif age < 65:
    print('You are an adult.')
elif age >= 65:
    print('You are the old.')